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Ge J, Zhou Y, Huang M, Gao Q, Dong Y, Dong S. Effects of constant and diel cyclic temperatures on the liver and intestinal phospholipid fatty acid composition in rainbow trout Oncorhynchus mykiss during seawater acclimation. BMC ZOOL 2021; 6:21. [PMID: 37170384 PMCID: PMC10127026 DOI: 10.1186/s40850-021-00086-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/07/2021] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Rainbow trout is an economically important fish in aquaculture and is a model species in environmental physiology. Despite earlier research on the seawater adaptability of rainbow trout at different temperature regimes, the influence on the liver and intestine in this species is still unknown. Two trials were conducted to investigate the effects of constant and diel cyclic temperatures on phospholipid fatty acid (PLFA) composition in the liver and intestine of rainbow trout during seawater acclimation.
Results
At the end of growth trial 1, fish at 9 and 12.5 °C showed significantly higher ratios of unsaturated to saturated (U/S) and unsaturation index (UI) than those at 16 °C in liver and intestine phospholipids. After day 1 of seawater acclimation, the U/S, UI, and average chain length (ACL) of liver and intestinal phospholipids in fish at 16 °C significantly increased. Two weeks after seawater acclimation, the liver and intestinal PLFA composition adapted to salinity changes. In trial 2, significantly higher U/S, UI, and ACL were found in intestinal phospholipids at 13 ± 2 °C. On the first day after seawater acclimation, UI and ACL in liver phospholipids significantly increased at 13 °C, while fish at 13 ± 2 °C showed significantly decreased U/S, UI, and ACL in the intestine. At the end of growth trial 2, liver PLFA compositions were stable, whereas intestinal PLFA at 13 and 13 ± 1 °C showed significantly decreased U/S, UI, and ACL. A two-way analysis of variance and principal component analysis revealed significant effects of different constant temperatures, seawater acclimation, and their interaction on the liver and intestinal phospholipids, a significant effect of diel cyclic temperature on intestinal phospholipids, and the effects of seawater acclimation and its interaction with diel cyclic temperature on liver phospholipids.
Conclusion
Temperatures of 9 and 12.5 °C could elevate membrane fluidity and thickness in the liver and intestine of rainbow trout in freshwater, whereas no significant effects were found with diel temperature variations. After seawater acclimation, constant and diel cyclic temperatures significantly influenced the membrane fluidity and thickness of the liver and intestine. Compared with constant temperature, diel temperature variation (13 ± 2 °C) can enhance the adaptability of rainbow trout during seawater acclimation.
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Na +, K +-ATPase α Isoforms and Endogenous Cardiac Steroids in Prefrontal Cortex of Bipolar Patients and Controls. Int J Mol Sci 2020; 21:ijms21165912. [PMID: 32824628 PMCID: PMC7460572 DOI: 10.3390/ijms21165912] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/05/2020] [Accepted: 08/13/2020] [Indexed: 02/07/2023] Open
Abstract
Bipolar disorder is a chronic multifactorial psychiatric illness that affects the mood, cognition, and functioning of about 1–2% of the world’s population. Its biological basis is unknown, and its treatment is unsatisfactory. The α1, α2, and α3 isoforms of the Na+, K+-ATPase, an essential membrane transporter, are vital for neuronal and glial function. The enzyme and its regulators, endogenous cardiac steroids like ouabain and marinobufagenin, are implicated in neuropsychiatric disorders, bipolar disorder in particular. Here, we address the hypothesis that the α isoforms of the Na+, K+-ATPase and its regulators are altered in the prefrontal cortex of bipolar disease patients. The α isoforms were determined by Western blot and ouabain and marinobufagenin by specific and sensitive immunoassays. We found that the α2 and α3 isoforms were significantly higher and marinobufagenin levels were significantly lower in the prefrontal cortex of the bipolar disease patients compared with those in the control. A positive correlation was found between the levels of the three α isoforms in all samples and between the α1 isoform and ouabain levels in the controls. These results are in accordance with the notion that the Na+, K+-ATPase-endogenous cardiac steroids system is involved in bipolar disease and suggest that it may be used as a target for drug development.
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Soo HJ, Sam KK, Chong J, Lau NS, Ting SY, Kuah MK, Kwang SY, Ranjani M, Shu-Chien AC. Functional characterisation of fatty acyl desaturase, Fads2, and elongase, Elovl5, in the Boddart's goggle-eyed goby Boleophthalmus boddarti (Gobiidae) suggests an incapacity for long-chain polyunsaturated fatty acid biosynthesis. JOURNAL OF FISH BIOLOGY 2020; 97:83-99. [PMID: 32222967 DOI: 10.1111/jfb.14328] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 03/15/2020] [Accepted: 03/17/2020] [Indexed: 06/10/2023]
Abstract
The biosynthesis of long-chain polyunsaturated fatty acids (LC-PUFA), a process to convert C18 polyunsaturated fatty acids into eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) or arachidonic acid (ARA), requires the concerted activities of two enzymes, the fatty acyl desaturase (Fads) and elongase (Elovl). This study highlights the cloning, functional characterisation and tissue expression pattern of a Fads and an Elovl from the Boddart's goggle-eyed goby (Boleophthalmus boddarti), a mudskipper species widely distributed in the Indo-Pacific region. Phylogenetic analysis revealed that the cloned fads and elovl are clustered with other teleost orthologs, respectively. The investigation of the genome of several mudskipper species, namely Boleophthalmus pectinirostris, Periophthalmus schlosseri and Periophthalmus magnuspinnatus, revealed a single Fads2 and two elongases, Elovl5 and Elovl4 for each respective species. A heterologous yeast assay indicated that the B. boddarti Fads2 possessed low desaturation activity on C18 PUFA and no desaturation on C20 and C22 PUFA substrates. In comparison, the Elovl5 showed a wide range of substrate specificity, with a capacity to elongate C18, C20 and C22 PUFA substrates. An amino acid residue that affects the capacity to elongate C22:5n-3 was identified in the B. boddarti Elovl5. Both genes are highly expressed in brain tissue. Among all tissues, DHA is highly concentrated in neuron-rich tissues, whereas EPA is highly deposited in gills. Taken together, the results showed that due to the inability to perform desaturation steps, B. boddarti is unable to biosynthesise LC-PUFA, relying on dietary intake to acquire these nutrients.
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Affiliation(s)
- Han-Jie Soo
- School of Biological Sciences, Universiti Sains Malaysia, Minden, Malaysia
| | - Ka Kei Sam
- Centre for Chemical Biology, Sains@USM, Bayan Lepas, Malaysia
| | - Joey Chong
- School of Biological Sciences, Universiti Sains Malaysia, Minden, Malaysia
| | - Nyok-Sean Lau
- Centre for Chemical Biology, Sains@USM, Bayan Lepas, Malaysia
| | - Seng Yeat Ting
- Centre for Chemical Biology, Sains@USM, Bayan Lepas, Malaysia
| | - Meng-Kiat Kuah
- Centre for Chemical Biology, Sains@USM, Bayan Lepas, Malaysia
| | - Sim Yee Kwang
- Center for Marine and Coastal Studies, Universiti Sains Malaysia, Minden, Malaysia
| | | | - Alexander Chong Shu-Chien
- School of Biological Sciences, Universiti Sains Malaysia, Minden, Malaysia
- Centre for Chemical Biology, Sains@USM, Bayan Lepas, Malaysia
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Murzina SA, Nefedova ZA, Pekkoeva SN, Veselov AE, Efremov DA, Ruokolainen TR, Nemova NN. Dynamics of Lipid and Fatty Acid Content at Early Ontogenesis Stages in Pink Salmon Oncorhynchus gorbuscha (Walbaum, 1792) in a Natural Environment (Indera River, Kola Peninsula). Russ J Dev Biol 2019. [DOI: 10.1134/s1062360419040052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Rind K, Beyrend D, Blondeau-Bidet E, Charmantier G, Cucchi P, Lignot JH. Effects of different salinities on the osmoregulatory capacity of Mediterranean sticklebacks living in freshwater. J Zool (1987) 2017. [DOI: 10.1111/jzo.12491] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- K. Rind
- Shaheed Benazir Bhutto University; Shaheed benazirabad Pakistan
| | - D. Beyrend
- MARBEC; MARine Biodiversity, Exploitation and Conservation; University of Montpellier; Montpellier France
| | - E. Blondeau-Bidet
- MARBEC; MARine Biodiversity, Exploitation and Conservation; University of Montpellier; Montpellier France
| | - G. Charmantier
- MARBEC; MARine Biodiversity, Exploitation and Conservation; University of Montpellier; Montpellier France
| | - P. Cucchi
- MARBEC; MARine Biodiversity, Exploitation and Conservation; University of Montpellier; Montpellier France
| | - J.-H. Lignot
- MARBEC; MARine Biodiversity, Exploitation and Conservation; University of Montpellier; Montpellier France
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Gao QX, Min MH, Zhang CJ, Peng SM, Shi ZH. Influence of salinity on juvenile obscure puffer Takifugu obscures. JOURNAL OF APPLIED ANIMAL RESEARCH 2017. [DOI: 10.1080/09712119.2016.1174123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Quan Xin Gao
- Key Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture, Chinese Academy of Fishery Sciences, East China Sea Fisheries Research Institute, Shanghai, People’s Republic of China
| | - Ming Hua Min
- Key Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture, Chinese Academy of Fishery Sciences, East China Sea Fisheries Research Institute, Shanghai, People’s Republic of China
| | - Chen Jie Zhang
- Key Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture, Chinese Academy of Fishery Sciences, East China Sea Fisheries Research Institute, Shanghai, People’s Republic of China
| | - Shi Ming Peng
- Key Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture, Chinese Academy of Fishery Sciences, East China Sea Fisheries Research Institute, Shanghai, People’s Republic of China
| | - Zhao Hong Shi
- Key Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture, Chinese Academy of Fishery Sciences, East China Sea Fisheries Research Institute, Shanghai, People’s Republic of China
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Structural lipid changes and Na + /K + -ATPase activity of gill cells' basolateral membranes during saltwater acclimation in sea lamprey ( Petromyzon marinus , L.) juveniles. Comp Biochem Physiol A Mol Integr Physiol 2015; 189:67-75. [DOI: 10.1016/j.cbpa.2015.07.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/29/2015] [Accepted: 07/29/2015] [Indexed: 02/02/2023]
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8
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Dalziel AC, Bittman J, Mandic M, Ou M, Schulte PM. Origins and functional diversification of salinity-responsive Na(+) , K(+) ATPase α1 paralogs in salmonids. Mol Ecol 2014; 23:3483-503. [PMID: 24917532 DOI: 10.1111/mec.12828] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 06/03/2014] [Accepted: 06/04/2014] [Indexed: 01/17/2023]
Abstract
The Salmoniform whole-genome duplication is hypothesized to have facilitated the evolution of anadromy, but little is known about the contribution of paralogs from this event to the physiological performance traits required for anadromy, such as salinity tolerance. Here, we determined when two candidate, salinity-responsive paralogs of the Na(+) , K(+) ATPase α subunit (α1a and α1b) evolved and studied their evolutionary trajectories and tissue-specific expression patterns. We found that these paralogs arose during a small-scale duplication event prior to the Salmoniform, but after the teleost, whole-genome duplication. The 'freshwater paralog' (α1a) is primarily expressed in the gills of Salmoniformes and an unduplicated freshwater sister species (Esox lucius) and experienced positive selection in the freshwater ancestor of Salmoniformes and Esociformes. Contrary to our predictions, the 'saltwater paralog' (α1b), which is more widely expressed than α1a, did not experience positive selection during the evolution of anadromy in the Coregoninae and Salmonine. To determine whether parallel mutations in Na(+) , K(+) ATPase α1 may contribute to salinity tolerance in other fishes, we studied independently evolved salinity-responsive Na(+) , K(+) ATPase α1 paralogs in Anabas testudineus and Oreochromis mossambicus. We found that a quarter of the mutations occurring between salmonid α1a and α1b in functionally important sites also evolved in parallel in at least one of these species. Together, these data argue that paralogs contributing to salinity tolerance evolved prior to the Salmoniform whole-genome duplication and that strong selection and/or functional constraints have led to parallel evolution in salinity-responsive Na(+) , K(+) ATPase α1 paralogs in fishes.
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Affiliation(s)
- Anne C Dalziel
- Department of Zoology, Biodiversity Research Center, University of British Columbia, 6270 University Blvd, Vancouver, British Columbia, Canada, V6T 1Z4; Department of Biology, Pavillon Charles-Eugène-Marchand, Université Laval, 1030 Avenue de la Médecine, Québec City, Québec, Canada, G1V 0A6
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Environmental salinity-modified osmoregulatory response in the sub-Antarctic notothenioid fish Eleginops maclovinus. Polar Biol 2014. [DOI: 10.1007/s00300-014-1515-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Glutathione protects Lactobacillus sanfranciscensis against freeze-thawing, freeze-drying, and cold treatment. Appl Environ Microbiol 2010; 76:2989-96. [PMID: 20208023 DOI: 10.1128/aem.00026-09] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Lactobacillus sanfranciscensis DSM20451 cells containing glutathione (GSH) displayed significantly higher resistance against cold stress induced by freeze-drying, freeze-thawing, and 4 degrees C cold treatment than those without GSH. Cells containing GSH were capable of maintaining their membrane structure intact when exposed to freeze-thawing. In addition, cells containing GSH showed a higher proportion of unsaturated fatty acids in cell membranes upon long-term cold treatment. Subsequent studies revealed that the protective role of GSH against cryodamage of the cell membrane is partly due to preventing peroxidation of membrane fatty acids and protecting Na(+),K(+)-ATPase. Intracellular accumulation of GSH enhanced the survival and the biotechnological performance of L. sanfranciscensis, suggesting that the robustness of starters for sourdough fermentation can be improved by selecting GSH-accumulating strains. Moreover, the results of this study may represent a further example of mechanisms for stress responses in lactic acid bacteria.
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Salum T, Kõks S, Kairane C, Mahlapuu R, Zilmer M, Vasar E. Temperature Dependence of the Sodium Pump is Altered in the Cerebral Cortex of CCK2 Receptor-Deficient Mice. Neurochem Res 2010; 35:688-92. [DOI: 10.1007/s11064-009-0119-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2009] [Indexed: 11/28/2022]
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12
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Dietary lipid composition affects the gene expression of gill Na+/K+-ATPase α1b but not the α1a isoform in juvenile fall chinook salmon (Oncorhynchus tshawytscha). J Comp Physiol B 2009; 180:141-9. [DOI: 10.1007/s00360-009-0394-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Revised: 07/17/2009] [Accepted: 07/20/2009] [Indexed: 10/20/2022]
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13
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Tipsmark CK. Identification of FXYD protein genes in a teleost: tissue-specific expression and response to salinity change. Am J Physiol Regul Integr Comp Physiol 2008; 294:R1367-78. [PMID: 18256141 DOI: 10.1152/ajpregu.00454.2007] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
It is increasingly clear that alterations in Na+-K+-ATPase kinetics to fit the demands in specialized cell types is vital for the enzyme to execute its different physiological roles in diverse tissues. In addition to tissue-dependent expression of isoforms of the conventional subunits, alpha and beta, auxiliary FXYD proteins appear to be essential regulatory components. The present study identified genes belonging to this family in Atlantic salmon by analysis of expressed sequence tags. Based on the conserved domain of these small membrane proteins, eight expressed FXYD isoforms were identified. Phylogenetic analysis suggests that six isoforms are homologues to the previously identified FXYD2, FXYD5, FXYD6, FXYD7, FXYD8, and FXYD9, while two additional isoforms were found (FXYD11 and FXYD12). Using quantitative PCR, tissue-dependent expression of the different isoforms was analyzed in gill, kidney, intestine, heart, muscle, brain, and liver. Two isoforms were expressed in several tissues (FXYD5 and FXYD9), while six isoforms were distributed in a discrete manner. In excitable tissues, two isoforms were highly expressed in brain (FXYD6 and FXYD7) and one in skeletal muscle (FXYD8). In osmoregulatory tissues, one isoform was expressed predominantly in gill (FXYD11), one in kidney (FXYD2), and one equally in kidney and intestine (FXYD12). Expression of several FXYD genes in kidney and gill differed between fresh water and seawater salmon, suggesting significance during osmoregulatory adaptations. In addition to identifying novel FXYD isoforms, these studies are the first to show the tissue dependence in their expression and modulation by salinity in any teleosts.
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